A standardized approach for the definition and reporting of vertical resolution of the ozone and temperature lidar profiles contributing to the Network for the Detection for Atmospheric Composition Change (NDACC) database is proposed. Two standardized definitions homogeneously and unequivocally describing the impact of vertical filtering are recommended. The first proposed definition is based on the width of the response to a finite-impulse-type perturbation. The response is computed by convolving the filter coefficients with an impulse function, namely, a Kronecker delta function for

smoothing filters, and a Heaviside step function for derivative filters. Once the response has been computed, the proposed standardized definition of vertical resolution is given by Δz= δz × H$_{FWHM}$, where δz is the lidar’s sampling resolution and H$_{FWHM}$, is the full width at half maximum (FWHM) of the response, measured in sampling intervals. The second proposed definition relates to digital filtering theory. After applying a Laplace transform to a set of filter coefficients, the filter’s gain characterizing the effect of the filter on the signal in the frequency domain is computed,

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smoothing filters, and a Heaviside step function for derivative filters. Once the response has been computed, the proposed standardized definition of vertical resolution is given by Δz= δz × H$_{FWHM}$, where δz is the lidar’s sampling resolution and H$_{FWHM}$, is the full width at half maximum (FWHM) of the response, measured in sampling intervals. The second proposed definition relates to digital filtering theory. After applying a Laplace transform to a set of filter coefficients, the filter’s gain characterizing the effect of the filter on the signal in the frequency domain is computed,

... mehr

Zugehörige Institution(en) am KIT |
Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU) KIT-Zentrum Klima und Umwelt (ZKU) |

Publikationstyp |
Zeitschriftenaufsatz |

Publikationsjahr |
2016 |

Sprache |
Englisch |

Identifikator |
ISSN: 1867-1381, 1867-8548 urn:nbn:de:swb:90-606628 KITopen-ID: 1000060662 |

HGF-Programm |
12.03.01 (POF III, LK 01) Long term observations of tropospheric |

Erschienen in |
Atmospheric measurement techniques |

Verlag |
Copernicus Publications |

Band |
9 |

Heft |
8 |

Seiten |
4029-4049 |

Nachgewiesen in |
Dimensions Web of Science Scopus |

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